万年历+温度+12864LCD，51单片机程序，proteus仿真，很好的

51+DS1302+gsm源代码，相信对大家有点启发-51+ DS1302+ Gsm source code, I believe we are a bit of inspiration

上位机是VB设置成的界面；下位机是用C编释的51单片机的温度采集模块。-VB PC are set to the interface under the C-bit machines are used for release of 51 single-chip temperature acquisition module.

亲测：基于51单片机的八路抢答器，与其他同类源码比，功能强大，有查询，设置，抢答，答题等所有实用功能。-Pro-test: Based on 51 single-chip eight-way of the Answer, and with other source than the powerful, a query, settings, Answer, answer all practical function.

频率可调 占空比可调 AVR 程序 程序可用 请放心用-Adjustable frequency adjustable duty cycle procedures AVR procedures available Please be assured by

这是C8051F020的源程序，很好，此单片机的功能强大，编程易学。-This is the source C8051F020, well, this single chip a powerful, easy to learn programming.

讲述如何提高单片机的运行速度,包括硬件上和软件上如何做相应的设计-on how to improve the speed MCU, including hardware and software on how to do the design accordingly

80152单片机实现HDLC协议的应用，对实现文档做了详细的说明，对开发学习机制有很大的帮助。

本压缩文件主要介绍语音芯片ISD25120的使用方法，附有实用源代码，直接可以使用-This paper introduces the voice compression chip ISD25120 use with utility source code can be used directly

dds控制字的详细描述，对新手入门有帮助。-dds a detailed description of control characters, beginners learn to be helpful.

三星单片机57C21516-Samsung SCM 57C21516